Protect and personalize your Nokia Lumia 900 with the AT&T Lumia 900 Bumper Case. The AT&T bumper case surrounds the sides of your cellular device, protecting it from knocks, drops and dings, without adding unnecessary bulk. Made with accessibility in mind, the AT&T Lumia 900 Bumper Case provides you with access to all ports, buttons and the camera on your Lumia 900.